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Questions and Answers

Chevy S-10 Crank, No Start

Q. Hi Vincent: I am having trouble diagnosing a no start problem on a 1997 Chevy S-10 Pickup, it has a 2.2 liter engine, automatic transmission, A/C and P/S. The engine cranks normally, but fails to start, I checked for spark to the spark plugs, each wire had a weak spark. I checked the ignition coils as outlined by Alldata and they were up to specs.

Chevy S-10 Crank, No Start

I removed the module underneath the coils and has it bench tested at the auto parts and was told the part was good. I checked for fuel pump operation and pressure and they were good. I removed the spark plugs to take an engine compression test and all cylinders had good compression, no change in wet or dry readings.

I noticed the spark plugs were wet with fuel, I replaced them with new ones. When I tried to start the vehicle again, the only way that the engine would attempt to start is with gas pedal all the way to the floor, then the engine would try to stay on at a low rpm and misfire and die out.

This is a used truck, I was told that the onboard computer was replaced, MAP sensor was replaced, TPS sensor was replaced, crank angle sensor was replaced and the catalytic converter was replaced because it was thought that it might be clogged. This vehicle still has a no start condition.

Do you have any suggestions on how to get this vehicle back in service? Also can you tell me where I can get some really good diagnostic and service book for this distributorless ignition system.

Thanks for any help,


Look in the owners manual for the address of Helm Inc. They make all the service manuals for Chevy's. This is what you need if you are going to try to diagnose this yourself. My guess is that there is a problem with the ignition if the plugs are wet.

Additional Information provided courtesy of AllDATA

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